单选题 Tom was accused of ______ against black persons, that is to say, he looks down upon them.
A. discriminating B. distinguishing C. distressing D. disguising

【正确答案】 A

【答案解析】[解析] 四个选项的意思分别是：discriminating歧视；distinguishing辨别，区分；distressing使痛苦，使忧伤；disguising化装，伪装。句意是，汤姆被指控歧视黑人，也就是说，他瞧不起黑人。所以正确答案是A选项，如：The new law discriminates against lower-paid workers．(这条新法律歧视低工资的工人。)